package cn.tedu.boot22.controller;

import cn.tedu.boot22.entity.Hero;
import cn.tedu.boot22.mapper.HeroMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;

@Controller
public class HeroController {
    /**
     * 自动注入/自动装配注解的作用:Spring框架结合mybatis框架会自动的将HeroMapper生成一个实现类和
     * 实现内部的方法,并且会自动实例化此对象,并交给Spring容器管理
     * required = false 告诉idea编译器此对象是非必须的
     */
    @Autowired(required = false)
    HeroMapper mapper;

    @RequestMapping("add")
    @ResponseBody
    public String add(Hero hero) {
        System.out.println("hero:"+hero);
        mapper.insert(hero);
        return "添加完成";
    }

    @RequestMapping("delete")
    @ResponseBody
    public String delete(String name) {
        mapper.deleteByName(name);
        return "删除完成";
    }

    @RequestMapping("select")
    @ResponseBody
    public String select() {
        List<Hero> list = mapper.select();
        return list.toString();
    }

    @RequestMapping("update")
    @ResponseBody
    public String update(Hero hero) {
        mapper.update(hero);
        return "修改完成";
    }
}
